It'd be neat if you could find some old insulation somewhere and insulate the thing!
Years ago I knew a guy who built something like this, but he cut a hole in the floor in the corner of it and somehow underneath the stand put a 5 gal bucket that attached to the outside floor of the bottom of his stand. Well, on the inside, he had an old toilet lid/seat and built a little stool about 3 ft off the floor and well you know... the rest is history! hahaha
...and on that day when my strength is failing, the end draws near and my times has come, still my soul will sing Your praise unending, ten thousand years and then forevermore!